Mechanism for feeding rivets and the like.



A. R. HAVENER. MECHANISM roafazpme mvns AND THE LIKE. APPLCATION FILED FEB. 8, 19l6 1,1 9 l ,1 80; Patented July 18, 1916.

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A. RuHAVENER. MECHANISM FOR FEEDING RIVETS AND THE LIKE.

' AP LICATION FILED FEB.8, I916.

Patented .1'u1y 18, 1916.

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H W QM 2 w I M A. ri. HAVENEH. MECHANISM FOR FEEDING RIVETS AND- THE LIKE.

APPLICATION FILED FEB. B. 1916. g 1,191 ,180, Patented J111y18, 1916.

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A. R. HAVENER.

MECHANISM FOR. FEEDING RIVETS AND THE LIKE APPLICATION FILED FEB. 8. 1916.

Patented July 18, 1916.

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,front elevation of my improved device for Fig. 3 but showing the rivet feeding slide n. navnumt'or wamnm, mnssncnusnrrs, ASSIGNOR To JUDSOIN' L.

THOMSON MFG CO. A CORPORATION OF MASSACHUSETTS.

MECHANISM FOR FEEDING BIVE'IS THE LIKE.

Specification of Letters Patent.

Application filed February 8, 1916. Serial No. 77,039.

To all whom it may concern Be it known that I, ARTHUR H. HAVENER, a citizen of the United States, residing at Waltham, in the countyof Middlesex and State of Massachusetts, have invented new and useful Improvements in Mechanism for Feeding Rivets and the'like, of which the following is a specification.

This invention relates to an improved mechanism for separating rivets and the like from a mass of such rivets and feeding them one by one down a raceway to a setting mechanism.

The mechanism consists of a hopper and a raceway which leads out of-said hopper and mechanism for separating the rivets in the hopper so that they may be fed one by one down the lower portion of the hopper to the rivet setting instrumentalities.

The object of the invention is to provide a hopper constructed and arranged that the rotary portion of the hopper may be moved away from the stationary portion thereof and the rivets contained within said rotary portion emptied preparatory to placing another size or style of rivet in the hopper. a

Another object of the invention 1s to provide a race-way connected with said hopper and so constructed that the same may easily and quickly be emptied of the rivets contained therein when a change in the s1ze .or

le of rivets is desired.-

- Still another object of the invention is to provide means for separating the rivets in the raceway so that they can be fed one by one to the rivet setting instrumentalities without danger of jamming or injuring said rivets or the mechanism by which they are so separated and fed.

The invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a feeding rivets and the like. Fig. 2 is a sec tional elevation taken on line 2 2 of Fig. 1. Fig. 3 is a detail front elevation of. a portion of the raceway viewed in the direction j of the arrow a, Fig. 2. Fig. 4'is a front elevation of a portion of the raceway similar to in a diiferent position. Fig. 5 isa front elevation of a portioyqf the raceway sim lar to Fig. 3, but with the auxiliary slide drawn back 1n pos tion to allow the rivets to pass from the upper part of the raceway into the lower part of the raceway. Fig. 6 is asectio'nal elevation taken on line 6-6 of Fig. 3 Fig. 7 1s a sectional elevation taken on hne 77 of Fig. 2. Fig. 8 is a'sectional elevation of a portioirof a riveting machine illustrating the mechanism whereby the 'shde for feedin the rivets one by one down Patented July 18, 1916:

the lower portion of the raceway is operated. Fig. 9 is a front elevation of a port1on of sa1d riveting machine illustrating the mechanism for operating the rivet feeding slide.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 10 is a hopper and 11 a raceway.- The hopper comprises a station-- member 14 adapted to hold rivets in mass,

said member 14 being 'rotatably mounted upon a sleeve 15. The sleeve 15 has at one end thereof a flange 16 and at the other end a handle 17. The handle 17 is'made in two parts 18 and 19 which are fastened together byscrews 20 leaving a space 21 between said two partsin which is located a bell crank lever 22 pivoted at23 to the part 18 of the handle 17. The arm 24 of the bell crank lever projects normally into a slot 25 extending transversely of a shaft 26. The other arm 27 of the bell crank lever 22 projects through a slot 28 in the handle 17 and outwardly therefrom so that it can be operated to move the arm 24 of said bell crank lever out of the slot' 25. Normally, as stated, the arm 24 is held in the slot 25 by means of a spring 29, one end of which is attached to the arm 24, the other end of which is attached to the part 18. A. spring 30 encircles the sleeve 15, one end of said spring bearing against the hub of the ham dle 18, the other end of said spring bearing.

said screw projects across the outer end of the slot 35, thus forming a stop to prevent the rotary member from being entirely removed from the shaft'26 when it is slid toward the right thereon (Fig. 2). A chute 37 is fastened to the stationary member 12 and is located beneath the rotary member 13 and outside the raceway 11. This chute is provided with two converging flanges 38 and 39 and is also provided with a slot 40 which enables the operator'to have access to the rivets which are locatedin the upper part of the raceway in case any of them should become clogged in said raceway.

The raceway 11 embodies two parts, namely, an upper part 41 and a lower part 42'. The upper part is provided with a guiding slot 43 and the lower part is pro vided with a guide slot 44, said slots 43 and 44 being out of alinement with each other. A slide 45 extendstransversely of said raceway and is located at the junction of the upper and lower parts of said raceway, its

upper edge being flush with the lower end I of the upper part of said raceway and with the upper end of r the lower part'of said raceway. Said slide is provided with a vertical slot 46 extending thereacross and adapted to receive a rivet when said rivet arrives at the bottom of the part 41 of the raceway, as illustrated in Fig. 4. When said slide 45 is moved toward the left (Fig. 4)

p it carries the rivet 47 with it out of aline-' ment with the guide slot 43 and into alinement with the guide slot 44, so that said rivet can pass down said guide slot 44 to the rivet setting instrumentalities. A pin 48 fast to the lower part "of the raceway projects into a notch 49 in the lower edge of the slide 45 and thus limits the distance to which said slide can be moved in opposite. directions (see Figs. 3 and 4). Said slide 45 isdriven in opposite directions by yielding mechanism 'so as to. avoid any in jury to the rivet in case it should become jammed during its passage from one p gfs yielding mechanism is particularly illustrated in Figs. 8 and 9 and consists of a lever 59 pivoted at 60 to-the frame of the machine and having a rocking motion imparted thereto by a roll 61 journaled upon a bell-crank lever 62. The bell-crank lever 62 is operated by meansof an eccentric rod 63 which is fastened to an eccentric str p 64 encircling an eccentric 65 which is fastened to a driving shaft 58. The lower end of the lever 59 is connected to the slide 45 tion is imparted to the lever 59 by the roll 61 engaging the cam-shaped end 68 of the lever 59, the slide 45 will be moved toward' the right (Fig. 9) through the spring 66, said spring under normal conditions holding the slide 45 against a pin 69 fast to the lower end of the lever 59. If, however, any obstruction should be 'met to the free movement of the slide 45 toward the right (Fig.

9), then the spring 66 will yield and there will be no damage done to any of the parts of the machine. The lower end of said lever 59 is moved toward the left and the slide 45 is driven toward the left (Fig. 9) by the pin '69 and by the spring 67, so that if any obstruction should be encountered by the slide 45, the spring 67 will cease to impart motion to the lever 59. Thus it will be seen that the slide 45 is driven in opposite directions by springs and, therefore, no harm can be done to the parts of the machine or to the rivets if any obstruction is encountered in the reciprocatory movement of the separator slide 45.

An auxiliary slide 50'is provided at the lower end of the upper part of said raceway and constitutes aportion of one side of said upper part. This slide is movable transversely of the raceway and is guided in ways 51 provided in the lower end of said raceway, said auxiliary slide being held in said ways by'me'ans of a screw 52 which projects through a slot 53 provided in said auxiliary slide 50. In order to hold the auxiliary slide 50 in position by frictional means a washer 54 is placed upon the screw 52 and is held against the auxiliary slide 50 by a spring 55 interposed between said washer and the head of the screw 52.

The general operation of the mechanism hereinbefore specifically described is as follows: The rivets are placed in the hopper by pouring them into a chute 56 provided in the stationary member 12 of the hopper. The rivets descend into the rivet' holding member 14 and said rivet holding member -14 is rotated by means of the shaft 26 and ratchet 33. The rivets pass outwardly from guide slot' 43 in the upper part of the raceway untll the lowermost rivet arrives in the position of the rivet 47 indicated'in Fig. 3

when it is 'stoppedby the slide 45. In the operation of the machine the slide 45- is moved from the position indicated in Fig. 3

toward the right to the position illustrated in Fig. 4 by the lever 59, springs 66 and 67 and the me hani m he e n efore de c i ed, 7

the leftfrom the position illustrated in Fig.

4 to thatillustrated in Fig. 3, whereupon the rivet 47 passes out' of the slide 45 and down the guide. slot 44 in the lower part of the raceway tothe rivet setting instrumentalities. Now, if it desired to remove the rivets from the hopper and from the race- Way, in order that other rivets of a different size or style may be inserted in said hopper and fed down said raceway, the operator moves the bell crank lever 22 from the position shown in full lines'to that shown in dotted lines (Fig. 7), thus moving the arm 24 out of the slot 25 in the shaft 26 and leaving the-parts in such relative positions that the sleeve 15, together with the rivet holding member 14, may be moved by a pull upon'*'the =,handle 17 toward the right (Fig.

' 2-) and thiis slid along the shaft 26 until the pin 34 engages the stop-screw 36. The

rivets will then pass out of the space which will thus be provided between the rivet moving the auxiliary slide 50 from the posi-- tion illustrated in Figs. 3 and 4 to the posi-.

tion illustrated in Fig. 5, thus opening the lower end of the guide slot 43, .so that the 40 rivets which are contained in said guide slot 43 will. pass downwardly out of said guide slot into a receptacle held in position therefor. When the hopper and raceway have thus been emptied of rivets the auxilaB iary. slide is moved back from the position illustrated in Fig. 5 to that illustrated in Fig. 3 and the rotary member 13 of said hopper is moved back to the position illustrated. in Fig. 2 of the drawings, where- 50 upon the spring 29 will cause the arm 14 of the bell crank lever 22 to again enter the slot 25 extending transversely of the shaft 26 and lock said rotary member against longitudinal movement upon said shaft. The parts are then in position to have a new lot of rivets inserted in the hopper, which is done by pouring them 'into the chute 56,-

whereupon they descend into the rivet holding member 14 and are fed to the raceway, as hereinbefore described.

I claim:

.. 1. A hopper for feeding rivets and the .like having, in combination, a stationary member, a rotary member constructed to hold a mass of li et a shaft p n hi h an arm pivoted to said rotary member and .movement.

said rotary member is slidably mounted and yielding means on said rotary member arranged to normally project into a recess in said shaft but movable out of said recess for locking said rotary member against movement longitudinally of said shaft and for unlocking the same to permit such movement.

2. A hopper for feeding rivets and the like having, in combination, a stationary member, a rotary member constructed to hold a; mass of rivets, a shaft upon which said rotary member is slidably mounted, and

arranged to normally project into a recess in 83 said shaft but movable out. of said recess,

for locking said rotary member against movement longitudinally .of said shaft and for unlocking the same to permit such 3. A hopper for feeding rivets and the like having, in combination, a stationary member, a rotary member constructed to hold a mass of rivets, a shaft upon which said rotary member is slidably mounted, an armpivoted to said rotary member and arranged to project into a slot extending transversely of I said shaft, and a acting to normally hold said arm in said slot,'for locking said rotary member against movement longitudinally of said shaft and for unlocking the same to permit such movement.

'4. A hopper for feeding rivets and the like having, in combination, a stationary member, a rotary member constructed to hold a mass of rivets, a shaft upon which said rotary member is slidably mounted, means movable transversely of said shaft, for locking said rotary member against movement longitudinally of said shaft and for unlocking the sameto permit of such movement and a stop on said shaft to limit the extent of said longitudinal movement.

5, A hopper for feeding rivets and the like having, in combination, alstationary member, a shaft rotatably mounted therein,

a rotary member mounted on said shaft and comprising a sleeve, a rivet holding member rotatably mounted on said sleeve, frictional means arranged to control the rotation of said rivet holding member upon said sleeve, a pin fast to. said sleeve and projecting therefrom into a slot extending longitudinally of said shaft and a lever pivoted to said sleeve and normally projecting intoft a slot extending transversely of said sha a 6. A hopper for feeding rivets and the like having, in combination, a stationary member, a shaft rotatably mounted therein, a rotary member mounted "on said shaft and comprising a sleeve having a flange at one end and a handle rotatab'ly mounted on said sleeve adjacent to said flange, a spring encircling said. sleeve and acting to force said rivet holding member against said flange, a projection on said sleeve extending into a slot extending longitudinally of said shaft and a bell-crank lever pivoted to said sleeve, Within said handle, one arm of said handle projecting into a slot extending transversely 10 of said shaft, the otherarm of said bell 'handle and a sprin crank lever projecting through a slot in' said acting to normally hold said first-name arm in said slot.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- 1-3 nesses.

ARTHUR R. HAVENER. Witnesses:

CHARLES S. Goonmo, SYDNEY E. TAFT. 

